P. Niezurawski

TL;DR: In this paper, a search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV, where the Cherenkov light detected in the Ring Imaging Cherennikov Detector and the ionisation loss measured in the Time Projection Chamber were used to identify heavy particles passing through the detector.

TL;DR: The longitudinal polarization of the Λb baryon was measured at the LEP e+e− collider by DELPHI as mentioned in this paper, which was determined from the charged lepton and neutrino energy spectra in 249±19 Λ b semileptonic decays reconstructed in ≈3.5 million hadronic Z0 decays using Λ0-lepton correlations.

TL;DR: In this paper, a new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{ u_\ell}) has been performed using a sample of about 5000 semileptonic decays.

TL;DR: The DELPHI detector at LEP has collected 54 pb^{-1} of data at a centre-of-mass energy around 183 GeV during 1997, 158 pb-1 around 189 GeV and 187 pb−1 between 192 and 200 GeV between 1998 and 1999.

TL;DR: In this paper, the ratio of the CKM quark-mixing matrix elements |Vub|/|Vcb| has been measured using B hadron semileptonic decays.